Method of making pavement conformation



March 2 1926. 1,574,754

M. F. BRAMLEY METHOD OF MAKING PAVEMENT CONFORMATION Filed Jan. 8 1925 hue/Woe M4 Til/m f, 564MB.

Patented Mar. 2, 11926.

PATENT OFFICE.

MATTHEW F. BRAMLEY, OF CLEVELAND, OHIO.

METHOD OF MAKING PAVEMENT CONFORMATION.

Application filed January To all whom it may concern:

Be it known that I, MATTHEW F. BRA- LnY, a citizen of the United States, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a new and useful Improvement in Methods of Making Pavement Conformation, of which the following is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions.

My invention pert-ains'to the method of making a rail adjoining pavement and more particularly relates to the art of forming a channel along which the flange of a car wheel may travel without coming into contact with the pavement.

Fig. I is a vertical crosssection of a street railway pavement constructed after the manner of my invention.

Fig. II is an enlarged vertical cross-section showing the preliminary concrete en.- bedding of the lower portion of a rail.

Fig. III is a view corresponding to Fig. II showing the addition of a soft and heated asphalt surfacing substantially level with the tread of the rail.

Fig. IV is a View corresponding to Fig. III showing a novel element used in carrying out my method, the same being shown compressed into the asphaltum layer inwardly adjacent the head of the rail, which is to say, on the side of the rail nearest its parallel companion rail.

Fig. V is a view corresponding to Fig. IV after complete performance of my method and with the forming element removed.

Fig. VI is a perspective view of the forming bar, the cross-section of which is a rhombus.

A concrete foundation 1, supports a pair of parallel rails 2 which are partially embedded therein so that the heads 3 of the rails project thereabove. Next an asphaltum layer 4 is spread upon the concrete and rolled substantially level with the tread surface of the heads 5 and then, while the asphaltum layer is still soft and warm elongated forming bars 5, preferably of metal, are pressed into the asphaltum layer inwardly adjacent or on the near sides of parallel rails until the upper surfaces of the bars rest substantially flush with the. upper 8, 1925. Serial No. 1,297.

surface of the asphaltum layer and about level with the tread portion 3 of the rail as appears in Figure IV.

It will be observed that the forming bar is of peculiar cross-sectional shape having in fact a cross-section which is a rhombus. It is to be noticed also that the upper and lower sides of the bar 5 are approximately horizontal whereas the other two sides 6 recede in an upward direction with respect to the abutting rail head. After a suitable interval of time the forming bars 5 are pried loose to leave the channels 7 inwardly adjacent a rail in which the flange 8 of a car wheel 9 may freely move by longitudinal travel therealong and within the expectable range of lateral or swaying movement.

I claim:

1. The method of making a rail-adjoining pavement which consist-s in laying an induratable pavement alongside of and against one entire side of the head of a rail, pressing any sides of a metal member of symmetrical shape into said pavement to displace a portion of said pavement away from the upper side portion of the rail and later removing said member.

2. The method of making a rail-adjoining pavement which consists in laying an asphalt pavement adjoining a rail, pressing a symmetrically shaped and reversible metal member into said pavement while soft, allowing the pavement to harden against said member and finally removing said member to leave a channel between said rail and the pavement for the passage of a car wheel flange.

3. The method of forming a channel in a railway pavementsuited to the rolling passage and side sway of a car wheel flange which consists in temporarily embedding in an indurating pavement and alongside of the rail location a member rhomboid in cross-section.

4:. The method of making a rail-adjoining pavement which consists in laying an induratable pavement alongside of a rail, imbedding a member, the cross section of which is a rhomboid, into said pavement alongside of a rail while said pavement is soft and finally removing said member.

Signed by me, this 9th day of December,

MAT HEW BRAMLEY. 

